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Patented May 30, I899.

J. n. BAKER. FILLING BLOCK.

(Application filed Oct. 10, 1898.)

I- |E I K N K ii THE Nomys PETERS co, PHOTO-LITHD., wAskmnTou, nvc.

\fl WITNEIEEEEI Nb. 625,9l9.

(No Model.)

UNITED STATES PATENT OFFICE.

JAMES DAY BAKER, OF LAVRENCE, MASSACHUSETTS, ASSIGNOR OF TWVO- THIRDS TOGUY XV. CURRIER AND EPHRAIM SEARLE, OF SAME PLACE.

FILLING- SPECIFICATION forrning part of Letters Patent No. 625,919,dated May 30, 1899.

Application filed October 10, 1898.

T0 aZZ whom it may concern;

Be it known that I, JAMES DAY BAKER, a subject of the Queen of GreatBritain, residing at Lawrence, in the county of Essex and State ofMassachusetts, have invented certain new and useful Improvements inFilling- Blocks; and I do hereby declare the following to be a full,clear, and exact description of the invention, suchas will enable othersskilled in the art to which it appertains to make and use the same.

The present invention relates to improvements in fireproof buildingmaterial, and more particularly to an improved fireproof fillingblockarranged to be incorporated in the partition-walls of buildings betweenthe outer or face coverings of such walls.

The object of the present invention is to produce a fireprooffilling-block which can be readily and quickly fitted between the woodenstudding or scantling of a building to cover and protect the inner facesof adjacent parallel scantlings, so that when the finishingcoverings ofthe walls are placed in position the wooden studding or scantling willbe entirely covered on all sides by practically fireproof material.

A further object of the present invention is to so construct my improvedfilling-blocks as not to add greatly to the weight of thepartition-walls of the building or to the weight supported by the floorsand, further, to so construct the blocks that they can be easily fittedto the spaces between adjacent scantlings, although such spaces shouldbe somewhat narrower than the standard space.

To the above end the present invention consists of the fireprooffilling-block and filling, which will be hereinafter described andclaimed.

- The present invention is illustrated in the accompanying drawings, inwhich--- Figure 1 shows in side elevation a portion of apartition-wallwith the outer covering on the side next the observerbroken away, showing my improved filler-blocks in position between thestudding. Fig. 2 shows a transverse section through the Wall, and Fig. 3shows a perspective View of one member of one of my improvedfiller-blocks.

Serial No. 693,125. (No model.)

In the drawings, A represents a series of upright wooden scantlings orstudding such as are commonly employed in building partition-walls, andthey are placed parallel to each other and at substantially uniformdistances apart, all as'usual in building such walls.

13 B represent the outer coverings of the partition-walls, whichcomprise an inner or under section b and an outer or finishing section17, the inner or under section I) being formed of individual sections ofmolded or plaster board,'which are prepared in suitable sizes andshapes, preferably rectangular, as shown, and when dry are nailed orotherwise secured to the wooden studding A, and the outerfinishing-section b may consist of any of the usual or ordinaryfinishing coats of plaster .or plaster-of-paris, which is laid on theroughened outer face of the plaster-boards in a plastic state in awell-known manner common to finishing partition-walls.

It is obvious that the plaster-board sections 1) on opposite sides ofthe wall will cover and protect the two opposite outer sides of theseveral scantlings or studding A, and for the purpose of covering theinner faces of said scantlings I have devised the improvedfilling-blocks G, which are inserted between adjacent scantlings in thespace formed by the wall-coverings B. The filling-blocks C are of justsufficient thickness to fit between the inner faces of theplaster-boards or the under sections 1) of the outer wall-coverings andare of a width sufiicient to extend be tween the adjacent scantlings Aand of a length suitable for convenient handling, usually about thirtyinches long, so that several such blocks when placed end to end willextend from the bottom to the top of the partition-wall, as clearlyshown in the illustration. (See Fig. 1.)

The blocks 0 are made of some suitable fireproof material, preferably acomposition of plaster-of-paris and excelsior or hair, and are moldedand allowed to harden and set before being used, and for the purpose oflightness said blocks are preferably hollow at their central portions,as shown at O.

The blocks C have parallel side faces 0, ar-

ranged to fit against the inner faces of the scantlings A, and parallelend faces 0, arranged to abut against the end faces of adjacent blocks,as clearly shown in the drawings.

In order to be able to adjust the width of the blocks 0 so that theymaybe fitted between scantlin gs A which may be placed closer togetherthan the average, such blocks are preferably divided or made in twosections 0 and 0 (one such section being shown in perspective in Fig.3,) the line of division of each block being staggered or laterally setoff from each other, and, as clearlyshown, each section will thereforehave at opposite ends inturned projections 0 one of which is slightlylonger than the other, so that when the sections are placed together, asshown in Fig. 1, the joints at the ends of adjacent blocks can be placedout of line or staggered, so as to prevent the formation of a continuousair-passage along the series of blocks from the bottom to the top of thepartition-wall.

It will be noted that if the space between the scantlings A is toonarrow to receive the blocks 0 of full width such blocks (3 may befitted accurately in the space between the inner faces of the scantlingsA by cutting off a suflicient length of the projections c to reduee thewidth of said blocks to correspond to the width of the space between thescantlings.

The plaster-boards b, which are illustrated and briefly referred to inthe present case, form no part of the present invention, but will formthe subject-matter of another application filed coujointly with thepresent case.

Having fully described the construction and mode of using my invention,I claim as new and desire to secure by Letters Patent of the UnitedStates 1. A hollow rectangular filling-block divided at its ends to formtwo sections the lines of division being laterally set off from eachother, substantially as described.

2. Afilling for walls comprising hollow rectangular plaster-blocks,placed end to end each, block divided at its ends to form two sectionsthe lines of division in adjacent blocks being staggered, substantiallyas described.

In testimony whereof I afiix my signature in presence of two witnesses.

JAMES DAY BAKER.

Witnesses:

GUY W. CURRIER, I E. CROWELL.

